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A105902 Primes for which -30 is a primitive root. 1
7, 41, 61, 83, 89, 107, 109, 127, 139, 173, 193, 197, 211, 227, 239, 281, 293, 311, 317, 331, 347, 349, 359, 367, 421, 431, 433, 443, 449, 457, 463, 467, 479, 487, 499, 521, 541, 557, 563, 569, 571, 577, 587, 599, 607, 619, 641, 653, 673, 677, 683, 719, 727, 739, 761 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

pr=-30; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]

CROSSREFS

Sequence in context: A080666 A224718 A272387 * A031909 A007398 A290204

Adjacent sequences:  A105899 A105900 A105901 * A105903 A105904 A105905

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 24 2005

STATUS

approved

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Last modified June 6 10:21 EDT 2020. Contains 334856 sequences. (Running on oeis4.)